https://community.cloudera.com/t5/Support-Questions/Insufficient-Permissions-error-while-login-to-Nifi-UI/m-p/187124#M149226 <P>Hi,<BR /><BR />We are trying to integrate Nifi and Ranger with LDAP. Ranger is successfully integrated with LDAP and i am able to login with the AD user. But when we are trying to integrate LDAP with NIFI using Ranger we facing issues. Will elaborate it using two scenarios.<BR /><BR />1) When we select user as "{USER}" than we can login to Nifi UI using AD users and it also gets logged in with Anonymous users. Please find below screenshot.<BR /><A href="https://community.cloudera.com/legacyfs/online/attachments/43398-capture1.png">capture1.png</A></P><P><A href="https://community.cloudera.com/legacyfs/online/attachments/43399-capture2.png">capture2.png</A><BR />2) If we remove "{USER}" from select user and put AD user for eg "apatank". Than we am unable to login and it gives me "Insufficient Permissions" error. Please find below screenshot.<BR /><A href="https://community.cloudera.com/legacyfs/online/attachments/43400-capture3.png">capture3.png</A></P><P><A href="https://community.cloudera.com/legacyfs/online/attachments/43401-capture4.png">capture4.png</A></P><P>How can we remove anonymous user "{USER}" and use AD users in select users option in Ranger Ploicy and login to NIFI UI?</P><P><BR />Please help us in resolving above issue.</P><P>Regards,</P><P>Avdhoot</P> Wed, 01 Nov 2017 21:23:46 GMT avdhoot_patanka 2017-11-01T21:23:46Z